Plant Sciences
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Water quality of the Modder River
(University of the Free State, 1998-11)English: The Modder River is a relatively small river which drains an area of 7 960 km² , in the central region of the Free State Province, South Africa and has a mean annual runoff of 184 x 10⁶ m³ . Botshabelo is a city ... -
Assessing genetic diversity and identification of Microcystis aeruginosa strains through AFLP and peRRFLP analyses.
(University of the Free State, 2003-12)English: There are 150 cyanobacterial genera and approximately 2 000 species known in the world. More than 40 of these have toxin producing strains. Cyanobacteria, commonly known as blue-green algae, are often present ... -
Genetic diversity analysis of linseed (linum usitatissimum L.) in different environments
(University of the Free State, 2002-11)English: The study was carried out to assess the genetic diversity of 60 linseed accessions mainly collected from Ethiopia in different environments using morphological and amplified fragment length polymorphism (AFLP) ... -
Assessment of South African bread wheat cultivars for milling quality
(University of the Free State, 2003)English: The objectives of this research were to assess South African winter and facultative bread wheat cultivars for milling quality, to study the effect of genotype x environment interaction on the stability of the ... -
An investigation into the possible causes of decline in the Acacia Erioloba population of the Kathu area
(University of the Free State, 2001)English: Concerned residents have been reporting a decline in the A. erioloba population of the Kathu area to the Northern Cape Nature Conservation Service (NCNCS) since the early 1980's. This is the third study on this ... -
An assessment of endophytic fungi in needles of three pinus spp. cultivated in South Africa
(University of the Free State, 1999-11)English: Endophytes, in the strict sense, are organisms that cause symptom less infections in plants. As symptomless mutualists, they can act as biocontrol agents of herbivorous insects and plant diseases. They can also ... -
'n Ondersoek na die antibakteriese eienskappe van Carpobrotus edulis L.
(University of the Free State, 1999-11)English: In the folk medicine of South Africa, many traditional medicinal plants are used by both the rural and a small percentage of the city population. One of these plants is Carpobrotus edulis L. An investigation of ... -
Water quality of the upper Orange River
(University of the Free State, 2000-05)English: The Upper Orange River is defined as the region between the source in the Drakensberg (Lesotho) and the Orange-Vaal confluence. Information on the water quality, phytoplankton composition and the influence of ... -
Chemical composition and antimicrobial activity of different root extracts of Hermannia geniculata against human pathogens of medical importance
(University of the Free State (Qwaqwa Campus), 2015-12)Hermannia geniculata has been used widely as traditional medicine for treatment agai nst infectious human pathogens. The aim of the study was to determine the antibacterial and anti fungal activities of H. geniculata ... -
The analysis of the national wetlands vegetation database: freshwater lowland palustrine wetlands
(University of the Free State, 2015-12)The South African wetlands vegetation is not well known. Number studies were conducted to classify vegetation focusing mostly in small areas throughout the country. Data from all studies were collated and used to build ... -
Studies on the survival of Verticillium dahliae in soil
(University of the Free State, 1979-12)Various aspects concerning the survival of Verticillium dahliae Kleb. in soil, in the field, green-house, and laboratory were studied. 'With biological control in mind, attention was paid to factors affecting antagonists ... -
The evaluation and characterisation of South African wheat cultivars for temperature stress tolerance
(University of the Free State, 2005-05)English: Extreme temperatures are detrimental to plant growth and development and thus affect the productivity of various crops around the world. In South Africa, nearly 544 000 hectares of wheat were insured against ... -
A phylogenetic study of the South African representatives of the tribe Andropogoneae (Poaceae)
(University of the Free State, 2003-11)English: The tribe Andropogoneae makes up half of the grass subfamily Panicoideae, with approximately 85 genera and 960 species (Hartley 1958, Clayton and Renvoize 1986). The genera of the tribe are typically tropical ... -
Quality prediction and improvement in Lesotho commercial wheat (Triticum aestivum L.) cultivars
(University of the Free State, 2005)English: • The objectives of this study were to characterize wheat cultivars grown in Lesotho according to their glutenin and gliadin banding patterns with the use of SOS-PAGE, estimate GCA, SCA, h2, heterosis and ... -
The influence of abiotic stress on CIMMYT provitamin A elite maize germplasm
(University of the Free State, 2017-01)Micronutrient malnutrition, including vitamin A deficiency, affects more than half of the world population, having a major effect on children less than five years old, pregnant and lactating women. The problem is significant ... -
Development of wheat lines with complex resistance to rusts and Fusarium head blight
(University of the Free State, 2017-06)Wheat is the second most important food crop worldwide. The world human population is increasing daily. Sustainable food production is necessary to ensure sufficient future food supply. Wheat production is negatively ... -
Genetic variability for forage yield and nutritive quality characteristics in selected inbred x Triticosecale genotypes
(University of the Free State, 2009-12)English: The objective of this study was to study the combining ability, heritability and additive genetic correlation of various nutritive quality, forage yield and animal production characteristics in a selected fixed ... -
Factors contributing to sodium dodecyl sulphate (SDS) sedimentation in irrigation wheat
(University of the Free State, 2017-04)The main objective of this study was to determine factors contributing to sodium dodecyl sulphate-sedimentation volume (SDSVOL) in elite wheat breeding lines grown at three different irrigation locations. This was possible ... -
Combining ability for crude protein in six selected inbred x Triticosecale genotype
(University of the Free State, 2007-12)English: The objective of this study was to study the combining ability, heritability and additive genetic correlation of various crude protein characteristics in a selected fixed population. Three treatments were used ... -
Assessment of adult plant resistance to stripe rust in wheat
(University of the Free State, 2004-05)English: The objective of this study was to develop and optimise methods to detect adult-plant resistance (APR) in wheat to stripe rust caused by Puccinia striiformis f.sp. tritici. A collection of spring wheats was ...
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